Rathfran Priory

The Dominican Priory of the Holy Cross

Rathfran Priory (Ráth Bhrandubh — “the Fort of Brandubh”) stands on the north bank of the Cloonaghmore River, 3.5 km north-northwest of Killala in County Mayo. Founded in 1274 as a Dominican friary dedicated to the Holy Cross, it is one of the oldest medieval religious houses on the Killala Bay coast and sits within the ancient territory of the Ó Dubhda.

The Yellow Book of Lecan (c. 1391–1401) poetically refers to the site as “Brandubh’s Fort of the Sweet Bells” — the name Rathfran itself deriving from Rath Brandubh, where Bran means “raven” and dubh the Gaelic word for “black.”

Foundation

The priory was founded in 1274 by William de Burgh (de Burgo) and his wife Finola D’Exeter, during the rapid expansion of the Dominican order across Ireland. The site was dedicated to a Holy Cross said to have been raised by St Patrick and built on the shrine of a folk-saint named O’Triallach.

The location placed the priory on the boundary of the bygone district of Caoile Connail — “Conall’s Territory” — once known as “the head of the ancient towns.” Though founded by Anglo-Norman patrons, Rathfran sat firmly within the wider territory over which the Ó Dubhda chiefs held sway. The Dominicans — the Order of Preachers — were known as scholars and educators, and their presence brought learning and literacy to the O’Dubhda heartland. The friars would have been deeply embedded in the life of the Gaelic community, ministering to clan and commoner alike along the Killala Bay coast.

Architecture and Remains

The 13th-century church is a long rectangular structure, with walls standing to varying heights. Notable surviving features include:

• A triple lancet east window, the remains of which are still visible
• A small crucifixion panel above the west door
• Sedilia (recessed stone seating for clergy) in the chancel
• A piscina (stone basin for washing sacred vessels)
• Multiple tomb niches set into the walls
• Traces of the two original cloisters to the north (only foundations remain)
• 16th-century living quarters north of the church, incorporating the original sacristy

The priory was modified in the 15th century, when lancet windows were built up and a south aisle was added. In 1438, indulgences were granted for the construction of a refectory and bell-tower, indicating the community was still active and growing at that date.

A Turbulent History

By 1458, the priory was reported as impoverished from “wars and other disasters” — a reflection of the broader upheavals afflicting Connacht during this period.

In February 1513, the friary was the scene of a notorious act of sacrilege: Edmond Burke was murdered within its walls, a violation of the ancient right of sanctuary that would have shocked the community.

The Tudor suppression of the monasteries sealed Rathfran’s fate. In 1577, the priory was officially dissolved and its lands granted to Thomas de Exeter. Queen Elizabeth I’s dissolution order described the site as “the site of the late dissolved house of Fryeres Preachers of Rathranne by the sea in the County of Mayo.”

Worse was to come. In 1590, Sir Richard Bingham’s forces burned Rathfran, along with the nearby Franciscan houses at Moyne and Rosserk. In 1596, the land was granted to William Taaffe. Despite this destruction, Dominican friars are known to have continued inhabiting the area into the 18th century, ministering in secret through the Penal era.

Visiting Today

Rathfran Priory is a National Monument of Ireland (reference no. 269), freely accessible to visitors year-round. The site is reached via local roads off the R314 north of Killala. It sits in open farmland close to the shore, and the approach can be muddy — sturdy footwear is recommended.

The setting is spectacular. On a clear day, the views across Killala Bay to Enniscrone, Bartra Island, and the Ox Mountains are breathtaking. The priory has a wilder, more remote feel than Moyne or Rosserk, which adds to its appeal for those seeking a deeper connection with the medieval landscape. A Sacred Landscapes information board at the site provides historical context in English.

Rathfran completes the trio of medieval religious houses on Killala Bay. Together with Moyne Abbey and Rosserk Friary, and the more recently documented Augustinian Abbey at Ardnaree, these form one of the most remarkable concentrations of medieval monastic heritage in western Ireland — all standing in the ancient territory of the Ó Dubhda.